20 visiting now: 12 USA 
1 India 
1 Vietnam 
1 China 
1 Saudi Arabia 
1 Germany 
1 Singapore 
1 Egypt 
1 Chile 
1 India 1 Vietnam 1 China 1 Saudi Arabia 1 Germany 1 Singapore 1 Egypt 1 Chile 1 India 1 Vietnam 1 China 1 Saudi Arabia 1 Germany 1 Singapore 1 Egypt 1 Chile